Chevy SBC 350 Oval Port Copper Exhaust Gasket Set The Speedmaster LowRise Manifolds are

The Speedmaster LowRise Manifolds are our lowest profile manifold and is also the only one that is street legal on pollution controlled vehicles

On the outside we've added a heavy-duty

The belts use a fiberglass cord wound across the entire width of the belts to minimize stretching

this premium-grade aluminum snout ensures seamless compatibility with various roots style supercharger systems

heat-resistant PTFE rod with a braided stainless steel cover

Chevy SBC 350 Oval Port Copper Exhaust Gasket Set The Speedmaster LowRise Manifolds areThese Speedmaster exhaust gaskets are made from thick copper, and feature an embossed ridge around the exhaust port for a tight, leakproof seal. The copper gaskets help even out the flow between the head and header flange to minimize warping. Also, they'll conform to rough or irregular surfaces to maintain a positive seal, while keeping the header bolts tight.